Elecbee CN3791 MPPT Solar Charge Controller Module for 3.7V Single Cell Lithium Battery 12V Solar Input

Elecbee CN3791 MPPT Solar Charge Controller Module

Elecbee CN3791 MPPT Solar Charge Controller Module is designed for 3.7V single cell lithium battery charging applications using 12V photovoltaic solar panels and embedded solar power systems. The module integrates maximum power point tracking technology, constant current and constant voltage charging control, automatic recharge management, and deep discharge recovery functions for efficient solar energy utilization.

Technical Specifications

• Model: CN3791
• Product Type: MPPT Solar Charge Controller Module
• Input Voltage: 12V Solar Panel Input
• Battery Type: Single Cell Lithium-Ion Battery
• Nominal Battery Voltage: 3.7V
• Charge Termination Voltage: 4.2V ±1%
• Maximum Charging Current: 2A
• PWM Switching Frequency: 300KHz
• Charging Method: Constant Current / Constant Voltage
• Connector Interface: 2Pin PH2.0 / JST
• MPPT Function: Automatic Maximum Power Point Tracking
• Recharge Function: Automatic Recharge Support
• Battery Protection: Deep Discharge Trickle Charging

MPPT Solar Energy Optimization

The CN3791 charging controller automatically tracks the maximum power point of photovoltaic solar panels to improve charging efficiency and maximize solar energy utilization under changing light conditions. The integrated MPPT control circuit dynamically adjusts charging parameters according to available solar power.

Single Cell Lithium Battery Charging Management

The module supports complete charging management for 3.7V single-cell lithium-ion batteries. The onboard charging controller provides stable constant current and constant voltage charging with accurate 4.2V charging termination control.

Embedded Power Control Function

The charging current can be configured using an external resistor, supporting flexible power management for low-power electronics, IoT devices, wireless sensor nodes, and solar-powered embedded systems.

Industrial and IoT Applications

Suitable for solar-powered IoT devices, embedded monitoring systems, environmental sensors, wireless communication nodes, portable solar electronics, smart agriculture systems, battery-powered control systems, and low-power industrial electronics.

Compatibility Information

Compatible with 12V photovoltaic panels, single-cell lithium-ion batteries, solar charging systems, embedded development platforms, wireless sensor networks, and low-power battery-powered electronic devices.